French cabin crews have no right to tell Muslim women to remove their burqa aboard Air France flights – despite a nationwide ban on full face veils, the airline has ruled.

Islamic passengers can be ordered to remove the garment while waiting in French airports to board the plane at the gate. But once on board, they are free to put their burqa back on, according to an internal memo to staff from Air France’s legal department.

France’s controversial burqa ban which came into force in April makes it a criminal offence for for anyone to hide their face in public.